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OpenStudy (anonymous):
physics question.. worth a medal!!
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OpenStudy (anonymous):
An engine absorbs 2150 J as heat from a hot reservoir and gives off 750 J as heat to a cold reservoir during each cycle. What is the efficiency of the engine?
OpenStudy (primeralph):
Output/Input * 100.
OpenStudy (anonymous):
ok thanks! so it's 286.67?
OpenStudy (anonymous):
@primeralph
OpenStudy (primeralph):
Efficiency can never be greater than 100.
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OpenStudy (anonymous):
oh right so it's 34.88?
OpenStudy (primeralph):
Show how you got that.
OpenStudy (anonymous):
\[(750\div2150)\times100\]
OpenStudy (primeralph):
Yeah.
OpenStudy (anonymous):
thanks!
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